GHSA-xh99-hw7h-wf63
Unchecked validity of Facing values in PlayerActionPacket
Quick fix
GHSA-xh99-hw7h-wf63 — pocketmine/pocketmine-mp: upgrade to the fixed version with the command below.
composer require pocketmine/pocketmine-mp:^4.0.6Details
### Impact A remote attacker may crash a server by sending `PlayerActionPacket` with invalid facing values (e.g. negative), specifically with `START_BREAK` or `CRACK_BLOCK` actions, or with a `UseItemTransactionData` (typically in `InventoryTransactionPacket`).
### Patches f126479c37ff00a717a828f5271cf8e821d12d6c
### Workarounds Using a plugin, cancel `DataPacketReceiveEvent` if the packet is `PlayerActionPacket` and the facing is outside the range 0-5 when receiving START_BREAK or CRACK_BLOCK actions, or UseItemTransactionData. However, beware that negative values may be legitimate in some cases.
### For more information If you have any questions or comments about this advisory: * Email us at [team@pmmp.io](mailto:team@pmmp.io)
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Affected packages
0Fixed in: 4.0.6composer require pocketmine/pocketmine-mp:^4.0.6